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WIKA · Level measurement · Family FLR_F

Reed level transmitter

The model FLR level transmitters with reed measuring chain are used for level measurement in liquid media. They work on the float principle with magnetic ...
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Description

The model FLR level transmitters with reed measuring chain are used for level measurement in liquid media. They work on the float principle with magnetic transmission.

The float's magnetic system in the guide tube actuates a resistance measuring chain that corresponds to a 3-wire potentiometer circuit. The measurement voltage generated by this is proportional to the fill level.

The measurement voltage is very finely stepped due to the contact separation of the measuring chain and is thus virtually continuous. Depending on the requirements several different contact separations are available.

Reed level transmitter, model FLR-F

Special features

  • Process- and procedure-specific solutions possible
  • Operating temperature: T = -80 ... +200 °C [-112 ... +392 °F]
  • Operating pressure: P = Vacuum to 25 bar [362.6 psi]
  • Limit density: ρ ≥ 400 kg/m 3 [25.0 lbs/ft 3 ]
  • Wide variety of different electrical connections, process connections and materials
  • Optionally with programmable and configurable head-mounted transmitter for 4 ... 20 mA field signals, HART ® , PROFIBUS ® PA and FOUNDATION™ Fieldbus
  • Explosion-protected versions (option)
Specifications are being prepared — full datasheet available on request.
Tables from datasheet
Level transmitterDescription
FLR-FAVersion without head-mounted transmitter
FLR-FBVersion with head-mounted transmitter
LogoDescriptionCountry
EU declaration of conformity ■ EMCdirective EN 61326 emission (group 1, class B) and immunity (industrial application) ■ RoHS directiveEuropean Union
■ ATEX directive (option) Hazardous areas - Ex i II 1/2G Ex ia IIC T4 ...T6 Ga/Gb or II 2D Ex ib IIIC T80 °C Db No.KEMA 01 ATEX 1052 - Ex d II 2G Ex d IIC T6 Gb / II 2 D Ex tb IIIC T80 °C Db No.TÜV 13 ATEX 7399 X
Model FLR-FAModel FLR-FB
Electrical connectionConnection housing: Aluminium 80 x 75 x 57 mm[3.1 x 3.0 x 2.2 in] without head-mounted transmitter Option: Polyester, stainless steelConnection housing: Aluminium 80 x 75x57mm [3.1 x 3.0 x 2.2 in] with head-mounted transmitter Option: Polyester, stainless steel
Material (process connection, guide tube, float)■ Stainless steel 1.4435 (316L) ■ Stainless steel 1.4404 (316L) Electropolished surface
Process connection■ Threaded pipe connection DIN 11851, downwards, DN 50 ...DN 150 ■ Clamp pipe connection DIN 32676, DN 25 …DN100or 1" …4" ■ Clamp pipe connection ISO 2852, DN 25 ...DN 150 Others on request
Guide tube diameter■ 12 mm[0.5 in] ■ 14 mm[0.6 in] ■ 18 mm[0.7 in]
Max. guide tube length L■ 1,500 mm(guide tube diameter 12 mm[0.5 in]) ■ 3,500 mm(guide tube diameter 14 mm[0.6 in]) ■ 6,000 mm(guide tube diameter 18 mm[0.7 in])
Float diameter44 ... 120 mm[1.7 ... 4.7 in]
Float selectionDepending on guide tube diameter and process conditions(see page 5)
Max. operating pressureSee page 5
Temperature range-20 ...+120 °C [-4 ...+248 °F] Option: ■ High-temperature version: 120 ... 200 °C [248 ... ■ Low-temperature version: -80 ... -20 °C [-112 ... -4392 °F] °F]
Contact separation■ 5 mm[0.2 in] ■ 10 mm[0.4 in] ■ 15 mm[0.6 in] ■ 18 mm[0.7 in]
Resolution■ 2.7 mm[0.1 in] ■ 5.5 mm[0.2 in] ■ 7.5 mm[0.3 in] ■ 9 mm[0.4 in] 1) (depending on contact separation)
Overall resistance of the measuring chainDepending on length and separation
Head-mounted transmitterExternal transmitterHead-mounted transmitter, see page 6
Tube end■ Float limitation welded to guide tube ■ Float limitation removable (with FDA conform sealing per CFR21 Food and Drugs for guide tube diameters 12 mm[0.5 in] and 14 mm[0.6 in])
Output3-wire potentiometer4 ...20mA
Connection cable to transmitter/ control roomCable length max. 2,000 m, 3-wire, shielded2-wire, shielded
Permissible supply voltage< AC 50V < DC 75VSee the data sheet of the head-mounted transmitter used
Mounting positionVertical ±30°
Ingress protectionUp to IP66 or IP68 per IEC/EN 60529 (depending on version)
MaterialVersionSuits guide tube Ø in mm[in]Ø A inmm [in]B inmm [in]Ø C inmm [in]Max. operating pressure in bar [psi]Max. operating temp. in °C [°F]Limit density 85 %in kg/m 3 [lbs/ft³]
1.4404 or 1.4571VE52R■ 12 [0.5] ■ 14 [0.6]52 [2.0]52 [2.0]15 [0.6]25 [362.6]250 [482]700 [43.7]
VE62R■ 12 [0.5] ■ 14 [0.6]62 [2.4]61 [2.4]15 [0.6]16 [232.1]250 [482]597 [37.3]
VE80R18 [0.7]80 [3.1]76 [2.9]23 [0.9]16 [232.1]250 [482]617 [38.5]
VE83R■ 12 [0.5] ■ 14 [0.6]83 [3.3]81 [3.2]15 [0.6]16 [232.1]250 [482]412 [25.7]
VE98R18 [0.7]98 [3.9]96 [3.8]23 [0.9]16 [232.1]250 [482]561 [35.0]
VE105R18 [0.7]105 [4.1]103 [4.1]23 [0.9]16 [232.1]250 [482]520 [32.5]
VE120R18 [0.7]120 [4.7]117 [4.6]23 [0.9]16 [232.1]250 [482]394 [24.6]
View all (6)
MaterialVersionSuits guide tube Ø in mm[in]Ø A inmm [in]B inmm [in]Ø C inmm [in]Max. operating pressure in bar [psi]Max. operating temp. in °C [°F]Limit density 85 %in kg/m 3 [lbs/ft³]
1.4404 or 1.4571VE44R■ 12 [0.5] ■ 14 [0.6]44 [1.7]52 [2.0]15 [0.6]16 [232.1]250 [482]740 [46.2]
Model4 ... 20 mAHART ®PROFIBUS ® PAFOUNDATION™ FieldbusEx iOrder umber
TEx---x014832
TSx----005894
T32Exx--x025216
T32Sxx---114795
T53F---xx025727
T53P--x-x034422
T15x---x122955 122954